Does all glue have some sort of animal parts in it?
No, only the older “animal-based” glues do, and perhaps some older kinds made from eggs or milk if you want to consider those “animal parts” too. Most all newer commonly-available types of glues and adhesives are synthetics, often based on polymers (plastics). I don’t know what country you’re from, but doing a google image search for “Pritt Stick” shows what appears to be a regular “white glue” (PVA) type of glue stick, and that’s definitely a synthetic. You might want to check out this page showing the various *types* of glues on this page if you’re interested: http://en.wikipedia.org/wiki/List_of_glu… HTH, Diane B.
